Sprig is a library that provides more than 100 commonly used template functions.

This package provides xor and binary fuse filters implementations as alternative to Bloom and cuckoo filters. Unlike Bloom filters, they are naturally compressible using standard techniques (gzip, zstd, etc.).

Papers:

Thomas Mueller Graf, Daniel Lemire, Binary Fuse Filters: Fast and Smaller Than Xor Filters, Journal of Experimental Algorithmics 27 (1.5), 2022. DOI: 10.1145/3510449

Thomas Mueller Graf, Daniel Lemire, Xor Filters: Faster and Smaller Than Bloom and Cuckoo Filters, Journal of Experimental Algorithmics 25 (1), 2020. DOI: 10.1145/3376122

Gson is a Go library for querying JSON data using path expressions, similar to JSONPath but with a simpler syntax.

This package provides a collection veriaty of utility libraries:

• intset - compress a stream of integers

• lz - lempel-ziv compression

• threadtree - a threaded binary-tree

• numerical - numerical integration and root finding

• maze - maze generation stuff

• hist - simple command-line histogramming tool

• simhash - trivial simhash implementation

• wscat - trivial websocket netcat

• servedir - trivial http fileserver

• rndtxt - generate random text strings

• mpush - push to multiple notification services (pushbullet, nma, pushover)

• superbat - batmanjs and go-restful playground

• msgrpc - msgpack rpc python/go interop samples

• quantile - testing different streaming quantile estimators

• wtflog - logging package with some renamed log levels

• qrshow - display QR codes in a terminal

• nlz - asm code to find number of leading zeros

• httpecho - server to dump information about an http request

• lzpack - trivial packed format for lz4 compression

• grinderplot - generate a flot chart from grinder logs

• worker - framework for spawning concurrent workers

• gddo - search godoc.org from the command line

• uuid - generate random UUIDs

• entropy - reducer to compute entropy per epoch for a set of values in a category

• inthash - integer hashing functions

• udprelay - simple udp-to-tcp multiplexing relay

• shufsecs - shuffle sorted epoch-data within epochs

• strtable - dumb string->uint32 hash table for profiling vs native maps

• cachetest - playing with different caching algorithms (clock, lru, lfu, random)

• glj - passing data from go to lua with msgpack

• toms - text filter for time.Duration to milliseconds

• bluniq - bloom-filter based unique filter

• skvdist - check distribution of shardedkv choosers

• gcwatch - print out garbage collection stats from /debug/vars

• toepoch - convert time fields to epochs

• repl - framework for making dumb repls for testing

• skvchk - tool for checking shardedkv distributions

• interp - interpolation search

• oma - simulation of the Dutch children's board game "Met de bus naar Oma"

• rndsample - uniform random sample from stdin

• pphrase - simple passphrase generator

• fastrand - fast xorshift rng with bias-free [0..n)

• range2cird - turn IP ranges into CIDR

• gfmt - trivial filter wrapping go-linebreak

• mtest - port of libtommath test program

• leven - fastest levenshtein distance algorithm I could find

• matcher - test different methods of testing string set membership

• cstbucket - crunch carbonserver logs for time-ranges of queries

• stablepart - stable partition a sort.Interface on a boolean predicate

• jumpreplica - tool for playing with replica choices for jump-hash

• sshdregex - demo using ragel for optimized regexp matching

• hllbench - benchmark different hyperloglog implementations

• shlines, sipsum - tools for siphashing things

• urlq - extract query parameters from a list of URLs

• median - compute the median of 5 numbers with a sorting network

• hashbench - benchmark different hashing functions

• fastpprof - how to use pprof with fasthttp

• ewmaest - progress logging with ewma-based ETA estimation

Package yaml implements YAML support for the Go language.

This package provides means to locally install development certificates.

This package provides traditional getopt processing for implementing programs that use traditional command lines.

FSWatcher is a robust and concurrent file system watcher for Go. It provides a simple and powerful API to monitor directories for file system changes, designed for high-performance applications and development tools.

This package implements functionality to format Assembler code the same way that gofmt formats Go code.

Package tint implements a zero-dependency slog.Handler that writes tinted (colorized) logs. The output format is inspired by the zerolog.ConsoleWriter and slog.TextHandler.

This package is for reading and writing netrc files. This package can parse netrc files, make changes to them, and then serialize them back to netrc format, while preserving any whitespace that was present in the source file.

gopkg is a universal utility collection for Go, it complements offerings such as Boost, Better std, Cloud tools.

This package, fsx, takes the style of the io/fs package, and extends it with more features:

• fsx provides the ability to write files (using OpenFile, which is much like the os package feature you're already familiar with)

• fsx provides the ability to create directories

• fsx provides the ability to delete files and directories

• fsx provides features for reading symlinks, and creating them

This package implements the JSON Schema specification. It supports creating schemas, validating JSON values against a schema, and inferring a schema from a Go struct. See the package documentation for usage.

This package implements a various systemd bindings and provides Golang submodules:

• activation - for writing and using socket activation from Go

• daemon - for notifying systemd of service status changes

• dbus - for starting/stopping/inspecting running services and units

• journal - for writing to systemd's logging service, journald

• sdjournal - for reading from journald by wrapping its C API

• login1 - for integration with the systemd logind API

• machine1 - for registering machines/containers with systemd

• unit - for (de)serialization and comparison of unit files

This package provides a Go library for calculating sunrise and sunset times from geographical coordinates and a date.

Package stack implements utilities to capture, manipulate, and format call stacks. It provides a simpler API than package runtime. The implementation takes care of the minutia and special cases of interpreting the program counter (pc) values returned by runtime.Callers.

GopherLua is a Lua5.1(+ goto statement in Lua5.2) VM and compiler. It provides Go APIs that allow you to easily embed a scripting language to your Go host programs.

This package parses text into shell arguments. Based on the cpan module Parse::CommandLine.

Terminal is a Go library for converting arbitrary shell output (with ANSI) into beautifully rendered HTML. It provides a single command, terminal-to-html, that can be used to convert terminal output via STDIN, as well as via a simple web server.

The OCI Image Format project creates and maintains the software shipping container image format spec (OCI Image Format).

Package redact provides facilities for separating safe and unsafe pieces of data when logging and constructing error object.

Chroma takes source code and other structured text and converts it into syntax highlighted HTML, ANSI-coloured text, etc.

gopdf is a Go library for generating PDF documents.